The following are the Terms and Conditions for purchases of Roaming Man™ products and/or services from UCLOUDLINK (SINGAPORE) PTE. LTD. (hereafter “UCLOUDLINK”). In order to place an order with our company, you must read and agree to the terms and conditions (“Terms and Conditions”) below. It is your responsibility to read and understand the terms and conditions completely and thoroughly, so please do not hesitate to contact us if you have any questions.UCLOUDLINK and you (the “Customer”) hereby agree to the following terms and conditions with respect to the product and/or service offering by UCLOUDLINK to the Customer of the wireless communication device and peripheral equipment (the “Equipment”), including, but not limited to, mobile hotspots, USB cables, User Manuals, and related or additional services (the “Services”) which are described herein or included in any written agreement between Customer and UCLOUDLINK for products and/or services (“Agreement”).

·I. Acceptance of Terms and Conditions

1.If the Customer places an order via UCLOUDLINK’s website (sg.roamingman.com), this will constitute the Customer’s acceptance of the Terms and Conditions. If the Customer places an order via UCLOUDLINK’s authorized Distributors or any other method, acceptance of the Equipment shall constitute the Customer’s acceptance of these Terms and Conditions.

·II. Authorization

1.If Customer is an entity other than an individual, the person signing the Agreement represents and warrants that he/she has been properly authorized and empowered to enter into the Agreement on behalf of such entity.

2.Customer authorizes UCLOUDLINK to verify the Customer’s creditworthiness with a credit reporting agency.

·III. Equipment Delivery

1.An order for Equipment must be placed by the Customer before 5 PM (Singapore Standard Time) Monday to Friday (no orders are processed on weekends) in order to be prepared for standard delivery options which include courier’s delivery to the designated address by Customer order or self-pick-up at UCLOUDLINK’s specified sales network, whichever way the Customer may choose in his/her discretion when placing order. If the Customer’s order for Equipment arrives after 5 PM, then the Equipment order will be considered to be placed on the next business day.

2.From the end of the Usage Term (the time period in which the Customer is being charged for the Services), the Customer has two (2) business days to return the Equipment to UCLOUDLINK. Late fees begin to accrue on the third (3rd) business day after the Usage Term ends.

3.UCLOUDLINK will take responsibility for the Equipment during transportation to the Customer’s address as designated by the Customer.

4.Standard delivery dates are business days (non-holidays) Monday through Friday. Delivery on weekends or public holidays is available at additional cost as UCLOUDLINK deems fit.

5.UCLOUDLINK will use reasonable efforts to deliver the Equipment prior to the date the Customer is scheduled to leave the country, but it shall not incur any liability in the event of any delay caused by force majeure or other circumstances beyond its control.

6.The Customer will accept the Equipment when delivered on or before the Departure Date, and if for any reason the Customer fails to accept the Equipment when delivered on or before such date, the Customer shall nevertheless be liable for the stated Services Charge and any applicable cancellation charge per the Terms & Conditions in which the Equipment was ordered.

7.If the Customer is not present when the Equipment is delivered to the Customer’s address, the Customer is authorizing UCLOUDLINK and its agent or delivery company to drop off the Equipment at the Customer’s shipping address. From the time the equipment is delivered to the Customer’s address, the Customer is responsible for the care of the Equipment.

·IV. Charges

1.Services Period or Usage Term – The number of days between the Departure Date and Return Date as specified by Customer in placing order with UCLOUDLINK.

2.The Customer will pay daily charges from the Departure Date (which refers to the hotspot activation date as specified by Customer in placing order) until the Return Date (the date in which the Customer returns from the travel as specified by Customer in placing order) for all of the Equipment specified in the Terms and Conditions. Services Charges apply to full days only (not fractional days).

3.UCLOUDLINK is entitled to bill the Customer, on a delayed basis, at any time after the Equipment has been returned for any and all charges for which the Customer shall be responsible pursuant hereto, whether or not UCLOUDLINK is aware of such charges at the time of the return of the Equipment. All charges and other amounts billed pursuant to this Agreement are payable by the Customer at the end of Usage Term, or if not computed at the end of Usage Term, then upon demand given by UCLOUDLINK to the Customer.

4.The Services Charge is charged to customer credit card or by other payment methods acceptable to UCLOUDLINK upon placement of Customer order. Any other amounts due to UCLOUDLINK under this Agreement are payable at the end of the Usage Term or such date as may be specified by UCLOUDLINK in writing. UCLOUDLINK shall be entitled to charge interest at the rate of 5% per month (or partial month) or highest lawful rate, whichever is less, on any overdue amounts.

5.Late fees start on the 3rd business day after the end of Usage Term as per the Standard Daily Rate of Customer order, per day/per unit, until the date Customer returns the Equipment.

6.Customer shall be liable for and obligated to pay UCLOUDLINK for all expenses, including reasonable attorneys’ fees, collection fees and court costs incurred in connection with any collection, repossession or other action brought to enforce UCLOUDLINK’s rights hereunder.

7.Pricing. The following are the prices charged for UCLOUDLINK’s equipment and services (Services), and all prices are in Singapore Dollars.

Equipment & Services

Price inclusive of all taxes

Description

RoamingMan™ WiFi Hotspot & Service

RoamingMan™ WiFi – Hotspot

Standard Daily Rate pursuant to Customer order

Hotspot service charged per day/unit

RoamingMan™ WiFi - Late Fee (which begins to accrue on the 3rd business day after Usage Term ends if Equipment is not returned)

Standard Daily Rate pursuant to Customer order

Charged per day/unit as stated in the Terms & Conditions

Shipping

Shipping and Handling

$ 5

Delivery Service (Singapore Domestic)

Return Shipping

$ 5

Delivery Service (Singapore Domestic)

Fees for Damaged or Lost Items

RoamingMan™ WiFi Hotspot

$100 /each

If equipment is lost, stolen, or severely damaged/water damaged

$40 /each

Equipment severely damaged but still functional

$20 /each

Screen or equipment be manually seriously scratched

USB cable

$ 10/ each

Including missing or damaged USB cable.

Pouch

$ 10 / each

Including missing or damaged Packet

Cancellation Fee

$ 10 / cancelled order

Cancellation fee charged after the product has shipped or less than 72 hours from their travelling date

·

1.If the Customer is having any difficulty with using the Service while at their destination, the Customer must notify UCLOUDLINK within the Services Period in order to qualify for any possible refund or discount to a Charge. Any refund or discount to a Charge is provided solely at UCLOUDLINK’s discretion.

2.Customer must notify UCLOUDLINK in writing of any final disputes regarding Charges within 30 days of receipt of the invoice, or final payment notification, containing the disputed Charge or else the right to dispute the Charge will be waived.

·V. Payment and Forms of Payment

1.The Rental Charge is charged to customer credit card or by other payment methods acceptable to UCLOUDLINK upon placement of Customer order. Any other amounts due to UCLOUDLINK under this Agreement are payable at the end of the Usage Term or such date as may be specified by UCLOUDLINK in writing.

2.By providing UCLOUDLINK with a Credit Card, the Customer represents that UCLOUDLINK is authorized to make charges on such account.

3.At UCLOUDLINK’s sole discretion, we may establish invoicing for corporate or other Customers.

·VI. Use of Equipment

1.Upon delivery to the Customer, UCLOUDLINK will provide instructions on the use of the Equipment by way of User Manual.

2. The wifi activation time shall follow the Singapore Time Zone GMT +8

3.The Customer will use the Equipment in a careful and proper manner and in accordance with the instructions within the User Manual and in no other manner.

4.The Customer agrees not to:1).use the Equipment in any country not listed in the original order for purposes other than the setup and configuration.

2).effect any repairs or modifications to the Equipment, or attempt to reverse engineer the Equipment;3).remove or interfere with any certification markers affixed to the Equipment;4).deface or add to the Equipment;5).sublet or allow the use of the Equipment by any third party;6).attempt to dispose of the Equipment, or encumber or grant any interest in the Equipment to any third party.

5.In the event of any loss, damage, theft or disappearance of the Equipment while in Services Period, regardless of circumstances, the Customer shall pay to UCLOUDLINK on demand, an amount equivalent to the value of the Equipment in accordance with UCLOUDLINK’s then-current listed prices in Terms and Conditions. In the event the Equipment is stolen or lost, the Customer is liable for all Services Charges on such Equipment until it is deactivated by UCLOUDLINK.

5.During the Use of Equipment, the Customer should contact UCLOUDLINK with any trouble or customer support issues in order to provide UCLOUDLINK the opportunity to resolve any difficulties.

·VII. In The Event of Loss or Damaged Equipment

1.In the event that your Equipment has been lost, damaged, stolen, or disappeared, notify UCLOUDLINK immediately by email (infosg@roamingman.com).

·VIII. Repairs or Damaged Equipment

1.If the Equipment is not in working order when received by the Customer or subsequently malfunctions then the Customer will notify UCLOUDLINK immediately.

2.UCLOUDLINK will repair or replace the Equipment as soon as possible after UCLOUDLINK has been notified of the problem by the Customer, and provided the Customer is not in breach of its agreement with UCLOUDLINK, UCLOUDLINK will provide the Customer with the same or similar equipment (which shall constitute Equipment for purposes of this Agreement) as soon as possible for a period equivalent to the part of the Services Period unexpired when the malfunction occurred.

3.If UCLOUDLINK finds that Equipment reported as faulty is in working order then the Customer will pay the cost of collection and delivery of the replacement Equipment in addition to the other fees payable under the Terms and Conditions.

·IX. Ownership

1.The Equipment will at all times remain property of UCLOUDLINK. Customers have no rights other than temporary use. During the Services Period, no dismantling or part replacements are authorized without the written approval of UCLOUDLINK.

·X. Termination

1.The use of the Equipment and all Services may be terminated or deactivated without notice by UCLOUDLINK upon any of the following events: (a) UCLOUDLINK has any reason to believe the Equipment was obtained by any misrepresentation or fraudulent means; (b) UCLOUDLINK has any reason to believe that any meter on the Equipment has been tampered with; (c) UCLOUDLINK has any reason to believe the Equipment is or may be used for any illegal or improper purpose, or in violation of applicable laws; (d) a breach of any of these Terms and Conditions including the payment terms; or (e) detection of unusually high usage, or possible theft or fraud. UCLOUDLINK may also, at its discretion and in addition to other remedies available hereunder at law or in equity, take immediate possession of the Equipment without being obliged to repay any portion of the Services Charges. UCLOUDLINK may also terminate these Terms and Conditions without any liability whatsoever in the event that Services are not available to UCLOUDLINK or becomes unavailable for any reason. No remedy of UCLOUDLINK shall be exclusive of any other remedy whether provided herein or available at law or in equity, but shall be cumulative with other remedies.

2.Should the Customer (a) obtain use of the Equipment by any misrepresentation or fraudulent means, or (b) tamper with Equipment, or (c) use the Equipment for any illegal or improper purpose, or in violation of applicable laws, or (d) otherwise commit a breach of these terms and conditions, then UCLOUDLINK may, at its option and in addition to other remedies available hereunder at law or in equity, (i) terminate this Agreement, (ii) immediately terminate all services to the Customer, and (iii) take immediate possession of the Equipment without being obliged to repay any portion of the Rental Charges. UCLOUDLINK may also terminate this Agreement without any liability whatsoever to the Customer in the event that Services is not available to UCLOUDLINK by a systems operator. No remedy of UCLOUDLINK shall be exclusive of any other remedy whether provided herein or available at law or in equity, but shall be cumulative with other remedies.

·XI. Applicable Law

1.This Agreement shall be governed by the laws of the Republic of Singapore, without giving effect to its choice of laws or provisions. Any legal action or similar proceedings shall be instituted and held in the Republic of Singapore, and Customer consents to the exclusive venue and jurisdiction of the courts in the Republic of Singapore.

·XII. Liability, In-Country Service, & Representations

1.Fair Use Policy (FUP) – In some countries, a Fair Use Policy may be in place in accordance with the business practices of the local internet service provider (the local in-country wireless network carrier or operator). If a FUP is in place, it may limit the transfer of a specific amount of data over a period of time. Internet service providers commonly apply a cap on the amount of wireless data when an individual user has exceeded a certain amount of data within a specified time period, which can result in a throttling down (slow down) of the connection speed. The Customer acknowledges that a FUP may be in place and accepts this possibility, and the Customer will not hold UCLOUDLINK liable for any FUP, throttling, or related issues which could affect the performance of the Equipment or the Customer's usage experience.

2.UCLOUDLINK warrants that the Equipment will be in working order when it is delivered to the Customer, but UCLOUDLINK cannot be responsible for the performance of the Equipment or the operation of the networks to which the Equipment is connected. The Customer acknowledges that Services may be temporarily interrupted (including dropped calls or weak signals), delayed, or otherwise limited due to a variety of causes, including but not without limitation to transmission limitations or interruptions, atmospheric conditions, system capacity limitations, network coverage, cell tower location / placement, wireless signal strength, network system, or equipment failure. The Customer's particular geographic location within a country, building, or structure, as well as a variety of other related causes, may also affect the Equipment performance.

3.UCLOUDLINK MAKES NO OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS, EITHER EXPRESS OR IMPLIED, REGARDING ANY MATTER, INCLUDING WITHOUT LIMITATION, THE MERCHANTABILITY, ACCURACY, RELIABILITY, CONDITION OR FITNESS FOR A PARTICULAR PURPOSE OF THE EQUIPMENT OR THE CELLULAR PHONE OR DATA SERVICES FURNISHED UNDER THIS AGREEMENT. EXCEPT AS SET FORTH IN SECTION 3 ABOVE, UCLOUDLINK DOES NOT REPRESENT THAT CUSTOMER’S USE OF THE PRODUCTS OR SERVICES WILL BE SECURE, TIMELY, UNINTERRUPTED OR ERROR FREE OR THAT THE SERVICE WILL MEET CUSTOMER’S REQUIREMENTS OR THAT ALL ERRORS IN THE SERVICE WILL BE CORRECTED OR THAT THE SYSTEM THAT MAKES THE SERVICE AVAILABLE WILL BE FREE OF VIRUSES OR OTHER HARMFUL COMPONENTS.

4.Subject to these Terms and Conditions, the Customer shall be solely responsible for and shall indemnify and hold harmless UCLOUDLINK against all claims, demands and liability arising as a result of the lease, possession, use, condition, operation or misuse of the Equipment by Customer or third parties, or of the services provided hereunder, whether in breach of these Terms and Conditions or otherwise arising howsoever. This indemnity provision shall survive the termination of this Agreement.

5.UCLOUDLINK WILL IN NO EVENT BE LIABLE FOR NOR SHALL THE CUSTOMER MAKE ANY CLAIM AGAINST UCLOUDLINK FOR ANY LIABILITY, CLAIM, LOSS, INJURY, DAMAGE OR EXPENSE OF ANY KIND (INCLUDING LOST PROFITS) WHETHER DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL CAUSED BY THE EQUIPMENT OR THE FAILURE OF THE EQUIPMENT TO OPERATE CORRECTLY OR AT ALL, OR FOR ANY DELAY, FAULTINESS (SUCH AS DEGRADATION OF SERVICE) OR FAILURE OF THE SERVICES.

6.The Customer shall be liable to UCLOUDLINK for all expenses, including reasonable attorneys’ fees, collection fees and court costs incurred in connection with any collection, repossession or other action brought to enforce UCLOUDLINK rights under this Agreement.

7.UCLOUDLINK reserves the right to deactivate the Equipment at any time and without notice to the Customer, in the event that UCLOUDLINK detects unusually high usage or possible fraud in accordance with general operating practices and procedures in the cellular industry, and UCLOUDLINK shall have no liability whatsoever to the Customer for such deactivation.

·XIII. General

1.The headings in this Agreement are for convenience of reference only and shall not affect the meaning or construction of the terms and conditions contained herein.

2.No waiver by UCLOUDLINK of any breach of this Agreement shall be considered as a waiver of any subsequent breach of the same or any other provision hereof.

3.This Agreement cannot be assigned or transferred by the Customer, nor can this Agreement be modified (or any provision waived or modified) except by written instrument signed by UCLOUDLINK or its authorized agent. This Agreement constitutes the entire agreement between UCLOUDLINK and the Customer with regard to the subject matter hereof, and there are no other representations, conditions, warranties, guarantees, or collateral agreements, express or implied, statutory or otherwise, concerning the use of the Equipment or the Services, other than as set forth herein.

4.UCLOUDLINK is not liable for any lack of privacy or security which may be experienced with regard to the Services. The Customer authorizes UCLOUDLINK’s monitoring and recording of data (Services) concerning the Customer’s account or the Services and consents to UCLOUDLINK’s use of automatic dialing equipment to contact the Customer. UCLOUDLINK has the right to intercept and disclose transmissions in order to protect its rights or property as permitted by applicable laws.

5.These Terms and Conditions may be amended or modified by UCLOUDLINK in its discretion at any time by providing notice to Customer of such changes by email address of the Customer, or by any other reasonable means.

Privacy Policy

Privacy Policy

I. RoamingMan’s Privacy Approach

Ucloudllink USA Limited takes the privacy of its Customers seriously. RoamingMan is a subsidiary of the company (hereafter “RoamingMan”). Below is the RoamingMan privacy policy, which governs the way in which RoamingMan processes any personal information that the Customer provides to us. If RoamingMan changes the privacy policy for its Website, RoamingMan will post those changes here so that the Customer will always know what information RoamingMan gathers, how RoamingMan may use that information and whether RoamingMan will disclose it to anyone.

The Customer can access the RoamingMan’s home page and browse the site without disclosing any personal data, apart from the information collected by cookies that RoamingMan use.

II. Who May Process Data

Personal information will only be collected with the Customer’s consent.

The Customer’s personal information (which includes name, email, address and any other details provided by the Customer to RoamingMan which identify the Customer as an individual) may be processed by RoamingMan.

RoamingMan may disclose or receive personal information or documents about the Customer to/from other companies within the RoamingMan group, its authorized carriers and its service providers including Credit Reference agencies.

RoamingMan may be required to disclose personal information or documents about a customer if required to do so by law in the prevention of criminal activities in accordance with US legislation.

III. Quality

RoamingMan will take all reasonable steps to ensure that personal information that is held is accurate, complete and up to date.

IV. Purpose of Processing

RoamingMan and its affiliates, its authorized carriers and service providers will use the Customer’s personal information for the purpose of administering RoamingMan’s relationship with the Customer, such as, order fulfillment, verifying the customer’s identity and delivery address, authorizing debit/credit card payments and processing any other transactions authorized by the Customer. RoamingMan may also wish to inform Customers of special offers, undertake product or customer research/development and provide other marketing information to the Customer which RoamingMan thinks the Customer may find of interest. If a Customer does not wish to receive any marketing information they may request that their details are excluded from any promotional activity by contacting RoamingMan .

V.Cookies

A small file may be sent by RoamingMan to the Customer’s computer when the Customer visits RoamingMan’s Website. This will enable RoamingMan to identify the Customer’s computer, track their behavior on RoamingMan’s Website and to identify the Customer’s particular areas of interest so as to enhance the Customer’s future visits to this Website. RoamingMan may use cookies to collect and store personal data and link information stored by cookies with personal data the Customer supplies to RoamingMan. Save for the use of cookies, RoamingMan does not automatically log data or collect data apart from information the Customer specifically provides to RoamingMan. The Customer can set their computer browser to reject cookies but this may preclude the Customer’s use of certain parts of the Website.

VI. Security Measures

RoamingMan uses Secure Sockets Layer (SSL) encryption when collecting or transferring sensitive data such as credit card information. SSL encryption is designed to make the information unreadable by anyone but RoamingMan. This security measure is working when you see either the symbol of an unbroken key or closed lock (depending on your browser) on the bottom of your browser window.

Notwithstanding the above, RoamingMan cannot guarantee the protection of Customers’ personal data transmitted electronically due to the nature of the Internet. Customers should be aware that when personal information is disclosed on the Internet it may be collected by another user and may result in unsolicited messages from other Internet users.

VII. Information Use

Personally identifiable information is collected and used by RoamingMan for five general purposes:a. fulfillment of your order requests for products and services.b. customization of the content you see.c. to contact you about special offers and new products. Please not: you can opt-out of marketing materials at any time.d. billing and order status purposes.e. fulfillment and maintenance of membership and service agreements.

VIII. Information Sharing

RoamingMan does not trade, sell or rent your personally identifiable information other than as outlined in this privacy policy. RoamingMan will only share your personally identifiable information in the following situations:a. RoamingMan has your consent to share the information.b. RoamingMan needs to provide the information to other companies to fulfill your request for a product or service. For example: a shipping company, credit card processing company, or service partner. (Without your consent, these companies do not have the right to use the personally identifiable information provided beyond what is necessary to assist RoamingMan.)c. RoamingMan is legally required to provide information in response to court orders, subpoenas or legal process.d. RoamingMan finds that your actions violate the usage guidelines outlined in the RoamingMan Terms and Conditions.e. RoamingMan feels that an emergency situation has arisen which requires us to release information before you can be contacted for consent. For example: a verified family emergency.

IX. Links

The RoamingMan website contains links to other websites. RoamingMan is not responsible for the privacy practices of sites owned and operated by other companies. When you leave the RoamingMan website, please read the privacy policies of each website that collects personally identifiable information. This privacy statement applies solely to information collected by RoamingMan, and such information remains private and secure when you follow links to other websites.

X. Anti-Spamming Policy

RoamingMan is committed to a zero-tolerance, anti-Spamming policy. Under this policy, we prohibit:a. Manipulating identifiers, such as email headers, to disguise the origin of any content transmitted to or through RoamingMan’s computer systems.b. Relaying email through a third party’s mail servers without the permission of that third party.c. Using or causing to be used RoamingMan computer systems to facilitate the transmission of unsolicited.d. Unauthorized material. This includes any promotional materials, URL’s, “junk mail,” “chain letters,” “pyramid schemes,” or any other form of unauthorized solicitation that you may upload, post, email, transmit, or otherwise make available.e. Using “robots” or otherwise harvesting others’ email addresses from the RoamingMan servers for purposes of sending unsolicited or unauthorized material.f. Uploading, posting, emailing, or transmitting the same message, URL, or post multiple times.g. Allowing third parties to contact our customer database without the customer’s prior consent.h. Emailing non RoamingMan customers promotional or marketing materials without their prior consent.i. Emailing RoamingMan customers who have opted out of email based contact promotional or marketing materials without their prior consent.

XI. Voluntary Customer Surveys

We may periodically conduct both business and individual customer surveys. We encourage our customers to participate in these surveys because they provide us with important information that helps us to improve the types of services we offer and how we provide them to you. Your personal information and responses will remain strictly confidential, even if the survey is conducted by a third party. Participation in our customer surveys is voluntary. We take the information we receive from individuals responding to our customer surveys and combine (or aggregate) it with the responses of other RoamingMan customers to create broader, generic responses to the survey questions (such as gender, age, residence, hobbies, education, employment, industry sector, or other demographic information). We then use the aggregated information to improve the quality of our Services to you, and to develop new services and products. This aggregate, non-personally identifying information may be shared with third parties.

XII. Other Partners and Sponsors

Some RoamingMan products and services are or may be offered in conjunction with a non-affiliated partner. To provide some of these products and services, the partner may need to collect and maintain personal information. In these instances, you will be notified before any such data is collected or transferred and may decide not to use that particular service or feature. RoamingMan will share non-identifying and aggregate information (except as described above), but not personal information, with such partners in order to administer any such co-branded products or services offered. At some websites, you can purchase products and services or register to receive materials, such as a brochure, a catalog or new product and service updates. In many cases, you may be asked to provide contact information, such as your name, address, email address, phone number, and credit/debit card information. RoamingMan has no control over the third parties’ use of any personal information you provide when placing such an order. We strongly suggest you review the third parties’ privacy policy before providing any of your information.

XIII. Special Cases

It is RoamingMan’s policy not to use or share the personal information about individuals in ways unrelated to the ones described above without also providing you an opportunity to opt out or otherwise prohibit such unrelated uses. However, RoamingMan may disclose personal information about individuals, or information regarding your use of the Services or internet sites accessible through our Services, for any reason if, in our sole discretion, we believe that it is reasonable to do so, including: to satisfy laws, such as the Electronic Communications Privacy Act, regulations, or governmental or legal requests for such information; to disclose information that is necessary to identify, contact, or bring legal action against someone who may be violating our terms of uses or other policies; to operate the Services properly; or to protect RoamingMan and our customers.

XIV. Revisions to this Policy

RoamingMan reserves the right to revise, amend, or modify this policy and our other policies and agreements at any time and in any manner.

XV. Contact Details

If the Customer has any inquiries or concerns about this Privacy Policy, or wishes RoamingMan to cease processing the information it has about that Customer as a result of the Customer’s use of RoamingMan’s web site, please contact us.